diff --git a/domains/send.auth.sign.alvin.json b/domains/send.auth.sign.alvin.json
index fbe05e7a4..7b2360eb2 100644
--- a/domains/send.auth.sign.alvin.json
+++ b/domains/send.auth.sign.alvin.json
@@ -4,7 +4,11 @@
     "discord": "825382504353234954"
   },
   "record": {
-    "MX": ["feedback-smtp.ap-northeast-1.amazonses.com"],
+    "MX": [
+{
+target: "feedback-smtp.ap-northeast-1.amazonses.com",
+priority: 10
+}],
     "TXT": ["v=spf1 include:amazonses.com ~all"]
   }
 }